Improper Input Validation Affecting php-devel package, versions *


Severity

Recommended
medium

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.54% (78th percentile)

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  • Snyk ID SNYK-CENTOS8-PHPDEVEL-1936863
  • published 1 Nov 2021
  • disclosed 12 May 2017

How to fix?

There is no fixed version for Centos:8 php-devel.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php-devel package and not the php-devel package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

The zend_string_extend function in Zend/zend_string.h in PHP through 7.1.5 does not prevent changes to string objects that result in a negative length, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact by leveraging a script's use of .= with a long string.

CVSS Scores

version 3.1
Expand this section

NVD

9.8 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High